85 5000S fuel pump short?

[Ethan Emeson]

> > And how would it show up as a short in the fuel
> > pump circuit?
>
> The heater usually is hanging off the fuel pump
> relay output.  So if it
> shorts, or its wires get damaged and short out, Zap!
> goes the fuel pump
> relay current and voltage.

Do you mean that the heater is fed
by the exact same output terminal from the relay? I
was testing the circuit by removing the relay and
jumping a wire between the 2 wide blade terminals
on the relay/fuse block. When the fuel pump is in fail
mode, the wire shorts there...
Do you know what the resistance of the O2 sensor
heater is supposed to be?

Thanks


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